C421 The old man has something to hide

Feng Aoxuan heaved a sigh of relief when he saw that Lin Tian did not continue destroying the square stone. Then, his clone floated in the air and said seriously, "Have you heard of the Immortal Sealing Killing Field?"

Lin Tian had just heard it before, and it was even Tu Feiyang who had explained it to him, so he asked suspiciously